A reason to stay Active

  This article was sent to me  and  is found in Life style. Canada. msm . com.   Running helps more than your heart and lungs. Promising brain research shows a strong link between running and a "younger," more nimble brain. Vigorous cardiovascular activity pumps more oxygen-and glucose-rich blood to your noggin. And when you make running a frequent habit, the rewards are long-term. All forms of exercise generate more energy for the brain, but research indicates the more aerobically challenging the exercise, the greater the mental payoff. Here's a look at your brain on running. 

New Thinking
Running sparks the growth of fresh nerve cells, called neurogenesis, and new blood vessels, called angiogenesis, says J. Carson Smith, Ph.D., an assistant professor at the University of Maryland in College Park who studies the role exercise plays in brain function. "We know that neurogenesis and angiogenesis increase brain-tissue volume, which otherwise shrinks as we age," he says. In a 2011 study reported in the Proceedings of the National Academy of Sciences (PNAS), for example, older adults who exercised regularly increased the volume of their hippocampus—the region linked to learning and memory—by two per cent, compared to inactive peers. That may not sound like much until you realize that this part of the brain isn't known for increasing at any point in adulthood. What's more, running appears to "rescue" many brain cells that would otherwise die.  So It helps to stay active  especially  as we age .